Home / 2,920.39-4,381.80-1,752.64

Finding the Fourth Proportional to 2,920.39, 4,381.80 and 1,752.64

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Solution

The fourth proportional to 2,920.39, 4,381.80 and 1,752.64 is: 2,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.39 : 4,381.80 = 1,752.64 : x
  2. Step 2: Convert to fraction form
    2,920.39/4,381.80 = 1,752.64/x
  3. Step 3: Cross multiply
    2,920.39x = 4,381.80 × 1,752.64
  4. Step 4: Simplify right side
    2,920.39x = 7,679,717.95
  5. Step 5: Solve for x
    x = 7,679,717.95/2,920.39
  6. Step 6: Final answer
    x = 2,629.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.